package chapter03.example07;
class Student {
    private  String name;
    private int age;
    public Student() { }
    public  Student(String n){
        name = n;
    }
    public  Student (String n,int a){
        name = n;
        age = a;
    }
    public void  read(){
        System.out.println("我是："+name+"年龄,"+age);
    }
}
public class example07 {
    public static void main(String[] args) {
        Student stu1 = new Student("张三");
        Student stu2 = new Student("张三",18);
        stu1.read();
        stu2.read();
    }
}
